{ INFORMATICS.MCCME.RU
  Problem statement: http://informatics.mccme.ru/moodle/mod/statements/view3.php?chapterid=3126
  Verdict: Accepted
}
uses SysUtils, Math;
 
var
	kk:longint;
	s:string;
 
begin
reset(input,'input.txt');
rewrite(output,'output.txt');
readln(s);
kk:=pos('@',s);
while kk>0 do begin
	delete(S,kk,1);
	kk:=pos('@',s);
end;
writeln(s);
end.